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Hi how can I solve this problem pls! V In a particular factory, the ambient noise has a loudness of 100 dB. If prolonged exposure

Hi how can I solve this problem pls!

V In a particular factory, the ambient noise has a loudness of 100 dB. If prolonged exposure to a loudness of 85 dB can cause permanent damage, how much more intense is the factory than the damage threshold

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